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main.tf
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main.tf
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# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0
provider "aws" {
region = var.region
}
# Filter out local zones, which are not currently supported
# with managed node groups
data "aws_availability_zones" "available" {
filter {
name = "opt-in-status"
values = ["opt-in-not-required"]
}
}
locals {
cluster_name = "education-eks-${random_string.suffix.result}"
}
resource "random_string" "suffix" {
length = 8
special = false
}
module "vpc" {
source = "terraform-aws-modules/vpc/aws"
version = "5.0.0"
name = "education-vpc"
cidr = "10.0.0.0/16"
azs = slice(data.aws_availability_zones.available.names, 0, 3)
private_subnets = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
public_subnets = ["10.0.4.0/24", "10.0.5.0/24", "10.0.6.0/24"]
enable_nat_gateway = true
single_nat_gateway = true
enable_dns_hostnames = true
public_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/elb" = 1
}
private_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/internal-elb" = 1
}
}
module "eks" {
source = "terraform-aws-modules/eks/aws"
version = "19.15.3"
cluster_name = local.cluster_name
cluster_version = "1.27"
vpc_id = module.vpc.vpc_id
subnet_ids = module.vpc.private_subnets
cluster_endpoint_public_access = true
eks_managed_node_group_defaults = {
ami_type = "AL2_x86_64"
}
eks_managed_node_groups = {
one = {
name = "node-group-1"
instance_types = ["t3.small"]
min_size = 1
max_size = 3
desired_size = 2
}
two = {
name = "node-group-2"
instance_types = ["t3.small"]
min_size = 1
max_size = 5
desired_size = 3
}
}
}
# https://aws.amazon.com/blogs/containers/amazon-ebs-csi-driver-is-now-generally-available-in-amazon-eks-add-ons/
data "aws_iam_policy" "ebs_csi_policy" {
arn = "arn:aws:iam::aws:policy/service-role/AmazonEBSCSIDriverPolicy"
}
module "irsa-ebs-csi" {
source = "terraform-aws-modules/iam/aws//modules/iam-assumable-role-with-oidc"
version = "4.7.0"
create_role = true
role_name = "AmazonEKSTFEBSCSIRole-${module.eks.cluster_name}"
provider_url = module.eks.oidc_provider
role_policy_arns = [data.aws_iam_policy.ebs_csi_policy.arn]
oidc_fully_qualified_subjects = ["system:serviceaccount:kube-system:ebs-csi-controller-sa"]
}
resource "aws_eks_addon" "ebs-csi" {
cluster_name = module.eks.cluster_name
addon_name = "aws-ebs-csi-driver"
addon_version = "v1.20.0-eksbuild.1"
service_account_role_arn = module.irsa-ebs-csi.iam_role_arn
tags = {
"eks_addon" = "ebs-csi"
"terraform" = "true"
}
}
provider "kubernetes" {
host = module.eks.cluster_endpoint
cluster_ca_certificate = base64decode(module.eks.cluster_certificate_authority_data)
token = data.aws_eks_cluster_auth.cluster.token
}
data "aws_eks_cluster" "cluster" {
name = local.cluster_name
}
data "aws_eks_cluster_auth" "cluster" {
name = local.cluster_name
}
resource "kubernetes_namespace" "nginx_ns" {
metadata {
name = "nginx-ns-2"
}
}
resource "kubernetes_deployment" "nginx_deployment" {
metadata {
name = "nginx-deployment"
namespace = kubernetes_namespace.nginx_ns.metadata[0].name
}
spec {
replicas = 2
selector {
match_labels = {
app = "nginx"
}
}
template {
metadata {
labels = {
app = "nginx"
}
}
spec {
container {
image = "nginx:latest"
name = "nginx"
}
}
}
}
}
provider "helm" {
kubernetes {
host = module.eks.cluster_endpoint
cluster_ca_certificate = base64decode(module.eks.cluster_certificate_authority_data)
token = data.aws_eks_cluster_auth.cluster.token
}
}
resource "kubernetes_namespace" "argocd" {
metadata {
name = "argocd"
}
}
resource "helm_release" "argo_cd" {
name = "argo-cd"
repository = "https://argoproj.github.io/argo-helm"
chart = "argo-cd"
namespace = "argocd" # or any namespace of your choice
# Customize your Argo CD deployment
set {
name = "server.service.type"
value = "LoadBalancer"
}
}